[jira] [Commented] (ARROW-1156) pyarrow.Array.from_pandas should take a type parameter

["Wes McKinney (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARROW-1156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16090145#comment-16090145 ] 

Wes McKinney commented on ARROW-1156:
-------------------------------------

Marking for 0.6.0 to make some improvements to this functionality (and documentation)

> pyarrow.Array.from_pandas should take a type parameter
> ------------------------------------------------------
>
>                 Key: ARROW-1156
>                 URL: https://issues.apache.org/jira/browse/ARROW-1156
>             Project: Apache Arrow
>          Issue Type: New Feature
>    Affects Versions: 0.4.0
>            Reporter: Wenchen Fan
>             Fix For: 0.6.0
>
>
> It's convenient to infer the data type so that users can just write {{pyarrow.Array.from_pandas(arr)}}, however, sometimes users want fine-grained control, e.g., if we have an object type numpy array, whose values are all null. When we convert it to an arrow column vector, we may need a specific type instead of NullType.



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